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Updated: Aug 30, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
Serum antibody response to polysaccharides in children with recurrent respiratory tract infections
A López-Yap1, A Abdelnour, B Lomonte
1Laboratorio Clínico, Caja de Seguro Social de Panamá, San José, Costa Rica. alberto68@latinmail.com
Abstract:
We evaluated children (15-months old and older) with recurrent upper respiratory tract infections and normal levels of immunoglobulins in serum for specific polysaccharide immunodeficiency using an enzyme-linked immunosorbent assay method. Results showed that of 12 patients vaccinated with Act-HIB vaccine, one did not develop specific antibodies to Haemophilus influenzae type b, demonstrating that such immunodeficiency is present in Costa Rican children.
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